scholarly journals Systematic and Ecological-Cenotic Analysis of the Cyperaceae Family of the Chechen Republic

2022 ◽  
Vol 42 ◽  
pp. 01022
Author(s):  
Zazu Iriskhanova ◽  
Madina Takaeva ◽  
Luiza Molochaeva

In this communication, a systematic and ecology-coenotical analysis of representatives of the Cyperaceae family of the Chechen Republic is given. A complete list of genera of the studied family of the Chechen Republic is specified. These studies were carried out based on processing herbarium materials and field observations of the authors. Representatives of Cyperaceae family of the Chechen Republic for the first time will be well studied.

2009 ◽  
Vol 66 (7) ◽  
pp. 1515-1519 ◽  
Author(s):  
Suchana Chavanich ◽  
Voranop Viyakarn ◽  
Thepsuda Loyjiw ◽  
Priyapat Pattaratamrong ◽  
Anchalee Chankong

Abstract Chavanich, S., Viyakarn, V., Loyjiw, T., Pattaratamrong, P., and Chankong, A. 2009. Mass bleaching of soft coral, Sarcophyton spp. in Thailand and the role of temperature and salinity stress. – ICES Journal of Marine Science, 66: 1515–1519. From June to October 2006 and 2007, mass bleaching of the soft coral, Sarcophyton spp., occurred for the first time in the upper Gulf of Thailand. Approximately 90% of the populations experienced extensive bleaching, and almost 95% of colonies were affected. Field observations also revealed that fragmentation of Sarcophyton spp. set in 1 month after the onset of bleaching. Some colonies started to recover to some extent by the end of July, with 95% of the population of Sarcophyton spp. recovering by October. Both acute and chronic trials were conducted to determine whether temperature and/or salinity triggered bleaching. In the acute tests, Sarcophyton spp. at 40°C and salinity 20 psu were completely bleached, and death occurred after 57 and 204 h, respectively. However, the colonies at 40 psu could survive through the experimental trial. In the chronic tests, Sarcophyton spp. died when exposed to 34°C, whereas complete bleaching and mortality of Sarcophyton spp. occurred at salinities of 10 and 49 psu. We conclude that elevated temperatures had a greater effect on the bleaching of Sarcophyton spp. than did salinity.


2003 ◽  
Vol 55 (1-2) ◽  
pp. 55-58 ◽  
Author(s):  
Mirjana Stojanovic ◽  
Spasenija Karaman

This paper contains the results of qualitative analysis of Lumbricidae (Oligochaeta) in Montenegro, during the period 1997-2003. The research has included natural and cultivated biotopes. The presence of 15 species was established and the habitats, localities and their zoogeographical position are given. In Montenegro we found four species for the first time Dendrobaena jastrebensis, D. vejdovskyi, Octodrilus bretcheri and Lumbricus terrestris. The complete list of earthworm species in Montenegro includes 45 taxa. With respects to the zoogeographic situation of the earthworms in Montenegro, the largest number belongs to endemic (10) and European (10) species. But 8 taxa are south-European, 9 Holarctic, 7 cosmopolitan, and 1 Palearctic. The degree of endemism of the earthworm fauna of Montenegro is quite high, exceeding 22.2%.


Zootaxa ◽  
2018 ◽  
Vol 4496 (1) ◽  
pp. 124 ◽  
Author(s):  
MIRJANA STOJANOVIĆ ◽  
JOVANA SEKULIĆ ◽  
TANJA TRAKIĆ

A checklist of the lumbricid earthworms in Serbia is presented. For the first time, comprehensive informations of all lumbricids in the country are given in order to establish the definitive list of known taxa from Serbia. The list underlines earthworm diversity and provides a general overview of their ecology, distribution in Serbia, and zoogeographical position. The complete list of earthworm taxa of Serbia comprises 74 species and subspecies of Lumbricidae, belonging to 15 genera. One third of earthworms in Serbia are endemics (26 taxa = 35.1%). 


2021 ◽  
Vol 32 ◽  
pp. 25-33
Author(s):  
D.A. Sidorov ◽  
◽  
M.Yu. Proshchalykin ◽  

A critical review of publications on bees of the family Andrenidae (Hymenoptera, Anthophila) of Mongolia is carried out for the first time. A complete list of 45 species recorded from Mongolia by various authors is provided. Totally six species (Andrena – 4, Panurginus –2) have been described from Mongolia and all of them are valid now. According to current data, Mongolian Andrenidae includes 38 species from three genera (Andrena – 32, Panurginus – 5, Melitturga – 1). Records of 15 species of the genus Andrena are problematic and needs to be confirmed.


2006 ◽  
Vol 6 (4) ◽  
pp. 529-539 ◽  
Author(s):  
L. Picarelli ◽  
G. Urciuoli ◽  
A. Mandolini ◽  
M. Ramondini

Abstract. Softening is often considered to be the main cause of first-time slides in OC clay, but so far the mechanics of softening has not been satisfactorily explained. Bearing on laboratory data and field observations about landslides in tectonized highly plastic clay shales of Italian Apennines, the paper describes a process of soil weakening that could explain some failures of natural slopes.


Zootaxa ◽  
2020 ◽  
Vol 4803 (1) ◽  
pp. 42-50
Author(s):  
DÁVID SELNEKOVIČ ◽  
ROBERTA IMPROTA

A complete list of the type material of Mordellidae described by Achille Costa is provided. Mordellistena picipes Costa, 1854 stat. restit. is restored as a valid species and a diagnostic description of the lectotype is given. Natirrica meridionalis Costa, 1854 is proposed as a new synonym of Mordellistena humeralis (Linnaeus, 1758). Lectotypes and paralectotypes are designated for the following taxa: Tomoxia bucephala Costa, 1854; Mordella coronata Costa, 1854 (= Variimorda villosa (Schrank, 1781)); M. interrupta Costa, 1854 (= Variimorda villosa (Schrank, 1781)); M. brevicauda Costa, 1854 (= M. brachyura Mulsant, 1856); M. perspicillata Costa, 1854 (= Mediimorda bipunctata Germar, 1827); M. viridescens Costa, 1859; Variimorda basalis (Costa, 1854); Mordellistena stricta Costa, 1854 (= M. pumila (Gyllenhal, 1810)); M. picipes Costa, 1854; M. confinis Costa, 1854; M. minima Costa, 1854; Natirrica meridionalis Costa, 1854 (= Mordellistena humeralis (Linnaeus, 1758)). The male genitalia of the Variimorda basalis lectotype are illustrated here for the first time. Photographs of the labels are provided for the type specimens. 


Zootaxa ◽  
2009 ◽  
Vol 2292 (1) ◽  
pp. 15-24 ◽  
Author(s):  
FERNANDO A. SILVEIRA

A second species of Actenosigynes from the Mantiqueira mountain range, in the southeastern Brazilian state of Minas Gerais, is described. This new taxon can be readily distinguished from the type species of the genus, A. fulvoniger (Michener, 1989), by its entirely black-pubescent mesosoma and by the light-yellow pilosity on its terga, among other characters. Females of the two known species are illustrated for the first time and a key is presented for their identification. Analysis of the pollen extracted from the scopa of the holotype of the new species and field observations of A. fulvoniger indicate that both species of Actenosigynes are oligolectic on flowers of Loasaceae as pollen sources. This presumed couple of sister species is the first example of a speciation event related to the isolation of populations of temperate and subtropical bee species on the top of southeastern-Brazilian mountains. It suggests that complexes of sibling species may exist among the other bee species with similar disjunct distribution.


2021 ◽  
pp. 261-268
Author(s):  
Vadim V. Maiko ◽  

The review considered the next IV Volume of a multi-volume publication: A Code of monuments of history, architecture and culture of the Crimean Tatars, prepared jointly by the Crimean Scientific Center of Sh. Marjani Institute of history of Academy of Sciences of the Republic of Tatarstan, the Department of History of Fevzi Yakubov “Crimean Engineering and Pedagogical University” and the State Hermitage with the involvement of specialists studying the history and archeology of Solkhat. This volume is entirely devoted to the monuments of history, archeology and architecture of Solkhat – Stary Krym and its district of the second half of the XIII-XIX centuries. For the first time in Russian historiography, the most complete list of cultural heritage objects has been collected. All archaeological works were carried out in Solkhat and its district from the second half of the 1920s and up to today. Previously unpublished photographs and drawings are given in the volume. This publication is rightly considered a new stage in the study of this unique historical place of the Crimea.


Diversity ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 286 ◽  
Author(s):  
Daniela Scaccabarozzi ◽  
Andrea Galimberti ◽  
Kingsley W. Dixon ◽  
Salvatore Cozzolino

Floral deception has been observed in several genera in angiosperms, but is most common in the Orchidaceae. Pollination mechanisms in food deceptive plants are often difficult to assess, as visitation frequency by insects requires numerous hours of field observations to ascertain. Here, for the first time, we describe in detail and validate a simple and effective method that extends previous approaches to increase the effectiveness of pollination studies of food deceptive orchids. We used an orchid of southwest Australia, Diuris brumalis (Orchidaceae), that visually mimics model plants belonging to the genus Daviesia (Faboideae). Arrays of orchid flowers were placed and moved systematically in proximity to model plants, resulting in rapid attraction of the pollinators of D. brumalis. We compared pollinaria removal (as an indicator of pollination success) in naturally growing orchids with pollinaria removal in arrays of orchid flowers in the same sites. We showed that the proposed method greatly enhances pollinator attractiveness in food deceptive systems with very low pollination rates, and we compared its efficiency with other similar methods. The approach can be used for observing pollinator behavioural patterns and confirming effective pollinators for food deceptive species with low insect visitation rates.


2007 ◽  
Vol 121 (4) ◽  
pp. 426
Author(s):  
Colin M. MacKinnon ◽  
Andrew C. Kennedy ◽  
Donald W. Colpitts

We detail field observations of Eastern Coyote eating Great Black-backed Gull eggs for the first time in the literature. Photographic evidence of the remaining egg shells allowed us to identify the Coyote as the predator.


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